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公开(公告)号：US12132513B2
公开(公告)日：2024-10-29
申请号：US18147490
申请日：2022-12-28
发明人： Jong Chul Lim
IPC分类号： H04B1/719 , H04B1/713 , H04B1/7183 , H04L9/08 , H04W12/041 , H04B1/69
CPC分类号： H04B1/719 , H04B1/713 , H04B1/7183 , H04L9/0869 , H04W12/041 , H04B2001/6908
摘要： The ultra-wideband (UWB) system includes an input unit configured to receive information on a separation distance between a tag and a vehicle, a memory in which a ranging program corresponding to the separation distance is embedded and a processor which executes the program, wherein the program determines a ranging scheme and an anchor to perform ranging according to the separation distance.
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公开(公告)号：US20240356689A1
公开(公告)日：2024-10-24
申请号：US18762790
申请日：2024-07-03
发明人： SaiRamesh Nammi
IPC分类号： H04L5/00 , H04B1/69 , H04W72/044 , H04W72/12 , H04W72/21
CPC分类号： H04L5/0005 , H04B1/69 , H04L5/0048 , H04W72/12 , H04W72/21 , H04W72/044
摘要： The disclosed subject matter relates to techniques for transmitting reference signals in non-orthogonal multiple access (NOMA) communication protocols. In one embodiment, a method comprises determining a demodulation reference signal (DMRS) for use by a group of mobile devices in association with uplink data transmissions, wherein respective mobile devices of the group of mobile devices are configured to employ a same time and a same frequency resource of a wireless communication network in association with communicating with network devices of the wireless communication network according to a NOMA communication protocol. The method further comprises determining different configuration parameters for application by the respective mobile devices in association with transmitting the DMRS with the uplink data transmissions, wherein the different configuration parameters facilitate differentiating between the DMRS as transmitted by the respective mobile devices. The method further comprises sending the DMRS and the different configuration parameters to the respective mobile devices.
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3.发明公开公开(公告)号：US20240356578A1
公开(公告)日：2024-10-24
申请号：US18644853
申请日：2024-04-24
申请人： Somewear Labs, Inc.
CPC分类号： H04B1/69 , H04W72/56 , H04B2001/6912
摘要： A system includes a network node device operable to dynamically connect to different networks and different types of networks based on factors including latency and noise levels in each network. The system allows for low power transmission of data packets as well as obfuscation of transferred data packets by splitting packets for a single file across multiple nodes in a mesh network, where the mesh network then recombines the signals to externally convey the data. The system leverages the use of LoRa communication across one or more networks to communicate critical data, such as location data for particular devices, at long ranges with minimized risk of detection.
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公开(公告)号：US12087153B2
公开(公告)日：2024-09-10
申请号：US18177674
申请日：2023-03-02
申请人： Wacom Co., Ltd.
发明人： Sadao Yamamoto , Hideyuki Hara
IPC分类号： G08C17/02 , G06F3/041 , G06F3/044 , H04B1/69 , H04B1/7073
CPC分类号： G08C17/02 , G06F3/04162 , G06F3/0441 , G06F3/0442 , H04B1/7073 , G08C2201/32 , H04B2001/6912
摘要： A sensor controller includes a transmitter configured to transmit an uplink signal including a first partial signal and a second partial signal. The transmitter is configured to transmit the first partial signal by direct spreading using a first spread code and transmit the second partial signal by direct spreading using a second spread code which is different from the first spread code and which has an identical chip time length to the first spread code. An active stylus includes a receiver configured to receive an uplink signal including a first partial signal and a second partial signal. The receiver is configured to synchronize with the uplink signal by detecting the first partial signal using a first spread code and thereafter detect the second partial signal using a second spread code, which is different from the first spread code and has an identical chip time length to the first spread code.
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公开(公告)号：US12052336B2
公开(公告)日：2024-07-30
申请号：US17853666
申请日：2022-06-29
发明人： Lianliang Tai , Hongfeng Xia , Jiaxi Fu , Yu Chen , Yongling Zhang , Feng Chen
CPC分类号： H04L7/0087 , H03L7/0807 , H04B1/69
摘要： A circuit and a method for removing spread spectrum are provided. The circuit includes a data clock recovery module and a clock extraction module that are connected. The data clock recovery module performs clock recovery on an input signal carrying spread spectrum information to obtain a parallel clock signal and a first signal, where the parallel clock signal includes frequency information and phase information, and the first signal includes the frequency information. The clock extraction module divides a frequency of the parallel clock signal to obtain a reference clock signal; acquires a feedback clock signal based on the first signal; acquires a de-spread clock signal based on the reference clock signal and the feedback clock signal, where the de-spread clock signal includes the phase information and does not include the frequency information; and divides a frequency of the de-spread clock signal to obtain an output clock signal.
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公开(公告)号：US12051973B2
公开(公告)日：2024-07-30
申请号：US17459928
申请日：2021-08-27
发明人： Sang Yong Lee , Paul David Curtis
摘要： At least some aspects of the present disclosure provide for a system. In some examples, the system includes a pulse width modulation (PWM) generator configured to generate a PWM signal. The PWM generator generates the PWM signal by generating a first signal having a first dithering profile and a first frequency bandwidth, generating a second signal having a second dithering profile and a second frequency bandwidth greater than the first frequency bandwidth, modulating the second signal with the first signal to generate a dual random spread spectrum signal, and generating the pulse width modulation signal according to the dual random spread spectrum signal.
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公开(公告)号：US11942993B2
公开(公告)日：2024-03-26
申请号：US17784104
申请日：2020-12-18
申请人： Molex, LLC
发明人： Kuen-Ting Tsai , Wei-Hung Chen , Zuon-Min Chuang , Yao-Wen Liang
IPC分类号： H04B10/2513 , G02F1/21 , H04B1/69 , H04B10/524 , H04B10/54
CPC分类号： H04B10/25137 , G02F1/212 , H04B1/69 , H04B10/524 , H04B10/541 , H04B2001/6912
摘要： An optical transmission device includes: a control module generate a control signal output which includes a slope adjust signal and a bias voltage offset adjust signal according to an input signal indicating a dispersion amount an electrical level adjust signal; a multi-level pulse amplitude modulator; and an asymmetrical optical modulator which is controlled by the slope adjust signal to be operated at one of a positive slope and a negative slope of a transfer function of the asymmetrical optical modulator itself, and is controlled by the bias voltage offset adjust signal of the control signal output to offset a bias voltage point of the asymmetrical optical modulator itself from a quadrature point of the transfer function, and modulates the multi-level pulse amplitude modulation signal to an optical signal to generate an optical modulate signal having a chirp.
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公开(公告)号：US20240089860A1
公开(公告)日：2024-03-14
申请号：US18243175
申请日：2023-09-07
发明人： Alexandre TRAMONI
CPC分类号： H04W52/0274 , H04B1/69 , H04B5/0025
摘要： A wireless communication device includes a battery, and a platform powered by the battery, with the platform including a processor. The device also includes a voltage regulator powered by the battery, an ultra-wideband communication unit powered by the voltage regulator via the platform when the platform is powered up, and a near-field communication unit powered directly by the battery, and being configured to order the voltage regulator to power the ultra-wideband communication unit when the platform is powered down.
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公开(公告)号：US11924719B2
公开(公告)日：2024-03-05
申请号：US18099778
申请日：2023-01-20
申请人： Verity AG
发明人： Luca Gherardi , Raffaello D'Andrea , Markus Hehn , Markus Waibel
IPC分类号： H04W4/30 , G01S1/02 , G01S1/04 , G01S1/20 , G01S5/02 , G01S5/14 , G05D1/00 , G05D1/02 , G05D1/10 , H04B1/69 , H04W4/02 , H04W4/021 , H04W4/029 , H04W84/18
CPC分类号： H04W4/30 , G01S1/024 , G01S1/042 , G01S1/20 , G01S5/0284 , G01S5/0289 , G01S5/14 , G05D1/00 , G05D1/028 , G05D1/102 , H04B1/69 , H04W4/021 , H04W4/026 , H04W4/027 , H04W4/029 , H04W84/18 , G05D2201/0216
摘要： Localization systems and methods for transmitting timestampable localization signals from anchors according to one or more transmission schedules. The transmission schedules may be generated and updated to achieve desired positioning performance. For example, one or more anchors may transmit localization signals at a different rate than other anchors, the anchor transmission order can be changed, and the signals can partially overlap. In addition, different transmission parameters may be used to transmit two localization signals at the same time without interference. A self-localizing apparatus is able to receive the localization signals and determine its position. The self-localizing apparatus may have a configurable receiver that can select to receive one of multiple available localization signals. The self-localizing apparatuses may have a pair of receivers able to receive two localization signals at the same time. A bridge anchor may be provided to enable a self-localizing apparatus to seamlessly transition between two localization systems.
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公开(公告)号：US20230421249A1
公开(公告)日：2023-12-28
申请号：US18244263
申请日：2023-09-10
申请人： Syed Karim
发明人： Syed Karim
CPC分类号： H04B7/18526 , H04B1/69 , H04B7/18563 , H04B2001/6912
摘要： Systems for communicating data through a satellite are disclosed. The systems generally include a radio designed for terrestrial communications that is configured to uplink data to one or more satellites. The one or more satellites are configured to receive the data from the terrestrial radio. In addition, the systems include terrestrial receivers, such as one or more chirp spread spectrum radios, positioned at ground level, which are configured to receive the data from the one or more satellites.
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